Valve.



R. H. MITCHELL, DECD. E. o. Ml TCHELL. ADMINISTRATRIX.

VALVE. APPLICATION FILED AUG. 14. 1909.

Patented Mar. 28, 1916. I

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T COLUMBIA PLMgOGRAPH co, WASHINGTON D c R. H. MITCHELL, DECD. E. D. MITCHELL. ADMINISTRATRIX.

VALVE. APPLICATION FILED AUG. 14, 1909.

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- STATES PATE- orrion RAYMOND' H." MITCHELL, 0F RGYEBSFOBD, PENNSYLVANIA; ESTHER D. IRWIN.

-MITGH-ELL,- nmvrrnxsrnarnrx or SAID RAYMOND H. MITCHELL, DECEASED, f

AssIGNoRro SANITARY COMPANY 01" AMERICA. 7 r

' VALVE."

Specification of Iietters Patent. PatentedlWIaI. 28, 1916.

Application filed August' l l, 1909. Serial No. 512,809

[0 all whom it may concern: I

Be it known that I, .RAYMQND H; Mrron- ELL, of'Royersford, in the State of Pennsyl- Vania, have invented a certain new and useful Improvementin Valves; whereof the following is a specification, reference being bad to the accompanying drawings.

My invention relates to avalve designed for use in connection with a hopper closet provided-with a flush tank and connections for automatically flushing the hopper with water from said tank.

It is the object of my invention to prevent the freezing of water in such a closet by providing means for discharging into the drain pipe below the hopper all of the water supplied to the flush tank and hopper connections during the flushing operation, so that under normal conditions, except diiring the momentary operation of flushing, all of the water pipes above Ethe frost line are empty. W

The form of hopper closet embodying my invention hereinafter described includes the combination with a hopper having a waste pipe, a flush tank, and means to supply wvater under pressure to said tank; of a valve arranged to be operated by the pressure of water toward said tank to obstruct the flow of water from said tank to said hopper, and operatedby the pressure of water away from said tank to permit the flow of water to said hopper. The invention herein claimed relates solely to said valve.

In the drawings; Figure I is a side view of a convenient embodiment of my inven-" tion, in connection with a section of a floor. Fig. II is'a fragmentary sectional view of the tank and a portion of the hopper indicated in Fig. I, but on a larger scale. Fig. III is a partial sectional view of the water supply controlling valve indicated in Fig. I.

The hopper 1 supported by the floor 2, in connection with the waste pipe 3, and trap at, has the water flush tank 6, provided with the conduit including the vertical pipe 7, valve casing 8, and horizontal pipe through which the water from said tank may be emptied into the hopper 1.

Water is supplied to said tank through the pipe 10 under control of the automatic valve including the reciprocatory cup member 11, fitted to slide ,in saidcasing 8., and havingat its top the port 18,-Iprovidedw ith the" check valve 15, arranged to rise and fall upon the studs 16, which'retain'it in operative relation with said valve j member 11; The arrangement is such that when water issupplied under pressure. through said pipe,l'0 ,"beneat h said valve. member 11, the'latter is raised to cover the port 18 in said casing 8, leading to the horizontal pipe 9, soas to obstruct and prevent the flow of water from said tank to said hopper. The

supply of water through said pipe 10 to the V tank 6 and hopper 1 is controlled by the automatic valve comprising the casing 20, to which the water is directed by the pipe 21 from the source'of supply. Said casing 20 is also in communication with the waste pipe 3 through the drain pipe 22. Said valve casing 20 is supported by the bracket 24 adjustably connected with the waste pipe 3, by the bolt 25, and has the arm 26 carrying the cam ring 27 beneath the cam disk 28. Said disk 28 is adjustably connected with said arm 26 by the bolt 30 and the arrangement is such that said ring 27 and disk 28 may be clamped in adjusted relative rotary position so as to present the upper surface of said disk 28 in a horizontal plane regardless of the inclination of said drain pipe 3 and bracket 24. Said casing 20 contains the plunger valve '32 having the stem 84 and the spring 35 which normally maintains said stem and valve to be lowered against the pressure of said spring 35 when the seat37 is pressed downward upon said stem. Said seat is hinged at 38 and provided with the weight 39 to raise it to the position shown, whenever released. It is to be understood that the arrangement of said controlling valve 32 is such that when it is released and assumes the position shown in Fig. 1, the passageway 40 connecting the pipe 21 and the pipe 10, is closed and the passageway 11 connecting the pipe 10 and the pipe 22 is opened, so that when said seat is raised, as shown, the water from said tank is emptied into said hopper and the water in the valve connections 12 beneath the valve member 11, in the pipe 10, and the valve casing 20, is

vdischarged through said drain pipe 22, into a and the escape of Water through said drain pipe 22 is prevented While the flow of Water from said supply pipe 21 to the pipe 10 and tank 6 is permitted. The aperture 42 in said valve member 11 permits the passage of air as the Water rises and falls beneath said member. I also find it convenient to provide the tank 6 With the overflow pipe 43 establishing communication between said tank and the hopper 1' through the pipe 9 independently of said valve 11, so that all Water rising in said tank above the top of said pipe 43, Will be discharged directly into the hopper. v

I do, not desire to limit myself to the precise details of construction and arrangement herein set forth, as it is obvious that various modifications may be made therein Without departing from the essential fea- The combination With a casing; of ahol- 10W cylindrical cup valve mounted to reciprocate in said casing, and having a port; a

check valve carried by said cup valvelin eluding a loose plate adapted to cover said 7 port; and means independent of said check valve limiting its opening movement, including a pair of studs extending through said.

plate and having heads serving as stops for said plates.

In testimony whereof, I have hereunto; signed my name, at 'Linfield, Pennsylvania...

this 29th day of July, .1909.

RAYMOND H.1MITCHELL.

Witnesses:

EDNA MxFmck, M. EVA Pon'rms.

Copies of this patent may be obtained for five cents each. by addressing the "Commissioner 0! Patents,

' Washington, D. 0. 

